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Phys Rev Lett. 2005 Jul 08;95(2):022001. doi: 10.1103/PhysRevLett.95.022001. Epub 2005 Jul 06.

Search for anomalous kinematics in tt dilepton events at CDF II.

Physical review letters

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Affiliations

  1. University of Florida, Gainesville, Florida 32611, USA.

PMID: 16090673 DOI: 10.1103/PhysRevLett.95.022001

Abstract

We report on a search for anomalous kinematics of tt dilepton events in pp collisions at square root of s=1.96 TeV using 193 pb(-1) of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from standard model (SM) expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy, and we find that the probability of obtaining a data sample less consistent with the SM than what is observed is 1.0%-4.5%.

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